scion 0.6.0

Game making library on top of wgpu, winit, legion
Documentation 
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use crate::{
    core::{
        components::maths::{
            camera::{Camera, DefaultCamera},
            transform::Transform,
        },
        resources::window::Window,
    },
    legion::{systems::CommandBuffer, *},
};

/// System responsible of adding a Camera on each entity with a DefaultCamera component
#[system(for_each)]
pub(crate) fn default_camera(
    cmd: &mut CommandBuffer,
    #[resource] window_dimension: &Window,
    _c: &DefaultCamera,
    entity: &Entity,
) {
    cmd.remove_component::<DefaultCamera>(*entity);

    let mut camera = Camera::new(
        window_dimension.width() as f32 / window_dimension.dpi() as f32,
        window_dimension.height() as f32 / window_dimension.dpi() as f32,
    );
    camera.dpi = window_dimension.dpi();
    cmd.add_component(*entity, camera);
    cmd.add_component(*entity, Transform::default());
}

/// System responsible of applying dpi to each camera
#[system(for_each)]
pub(crate) fn camera_dpi(#[resource] window_dimension: &Window, c: &mut Camera) {
    c.dpi = window_dimension.dpi();
}